The Gravity singer had surgery on a granuloma, a growth on his tonsils, in October 2011. Although John's recovery from the operation was slow, the musician felt healthy enough to host a 21-date Spring 2012 tour across America beginning this month.
This week, John became clear on the true nature of his throat's condition: 'During rehearsal on Tuesday, it came to mind that I should see my throat doctor because something didn't feel/sound right,' John posted on his Tumblr blog Friday. 'I went in for a visit on Wednesday and a scope of my vocal cords revealed that the granuloma has grown back where it had mostly healed. This is bad news. Because of this, I have no choice but to take an indefinite break from live performing. Though there will be a day when all of this will be behind me, it will sideline me for a longer period of time than I care to have you count down.'
John is not looking forward to the long recuperative process following surgery for this condition: 'I want to explain this a bit more in depth than I have in the past, because I know there's some confusion as to what this condition is; a granuloma forms and continues to snowball because it's in a spot where the vocal cords hit together and there's no way to really give it a chance to heal without a good stretch of time and some pretty intensive treatment,' he explained. 'In short, it's one giant pain in the ass.'
Although his throat won't be put to use for a while, John is determined to flex his creative muscle and create new music: 'I feel really vibrant as a writer at the moment and there's no reason not to begin the next album project in the time I would have been touring,' he wrote. 'Somewhere in all of this is another surgery and a very long chemically-imposed period of silence, so I hope you'll understand that I have to really pick that date carefully.'
John's new album Born and Raised will be released on schedule on May 22.